WO2020154933A1 - Canule d'oxygène médicinale - Google Patents

Canule d'oxygène médicinale Download PDF

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Publication number
WO2020154933A1
WO2020154933A1 PCT/CN2019/073800 CN2019073800W WO2020154933A1 WO 2020154933 A1 WO2020154933 A1 WO 2020154933A1 CN 2019073800 W CN2019073800 W CN 2019073800W WO 2020154933 A1 WO2020154933 A1 WO 2020154933A1
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WO
WIPO (PCT)
Prior art keywords
tube
transition
cannula
oxygen
medical oxygen
Prior art date
Application number
PCT/CN2019/073800
Other languages
English (en)
Chinese (zh)
Inventor
刘�英
李爽
胡万宁
刘浩源
郑瑞云
郑淏元
Original Assignee
唐山哈船科技有限公司
华北理工大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 唐山哈船科技有限公司, 华北理工大学 filed Critical 唐山哈船科技有限公司
Priority to PCT/CN2019/073800 priority Critical patent/WO2020154933A1/fr
Priority to AU2019100778A priority patent/AU2019100778A4/en
Publication of WO2020154933A1 publication Critical patent/WO2020154933A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks

Definitions

  • the invention relates to the technical field of medical equipment, in particular to a medical oxygen tube.
  • Medical oxygen refers to the use of cryogenic separation to separate oxygen in the atmosphere to supply oxygen for medical treatment of patients.
  • the bottled medical oxygen is sent to various medical places.
  • the national standard for the purity of bottled medical oxygen is ⁇ 99.5%, and there are strict limits on the carbon dioxide content, carbon monoxide content, pH, gaseous oxide, etc., and most of the bottled medical oxygen is With pressure, it is directly delivered to the patient's nasal cavity through a tube.
  • the existing pipe is made of transparent plastic material, with two outlets directly facing the nostrils, which is convenient for the patient to breathe; but because the pipe is usually small in inner diameter, it is easy to generate noise when conveying compressed air, which will affect the patients in the ward . If the oxygen flow is reduced, although the noise can be reduced, it cannot meet the patient's oxygen requirements.
  • oxygen will be continuously provided to the patient. This oxygen supply will continue until the doctor confirms that no more oxygen is needed. But in fact, in this oxygen supply process, the patient does not always have to wear oxygen supply equipment, or more specifically, when the patient exhales, the oxygen supply is wasteful and cannot be absorbed by the patient, resulting in a waste of resources.
  • the present invention proposes a medical oxygen tube, which does not generate noise under the condition of normal oxygen supply to the patient and reduces the influence.
  • a medical oxygen tube comprising a tube body, a transition tube and two nasal insertion tubes, the tube body is connected to the transition tube, and the transition tube radially communicates with the two nasal insertion tubes ,
  • the inner wall of the connection between the nose insertion tube and the transition tube is a smooth transition arc structure.
  • the inner diameter of the transition tube and the nasal insertion tube are both larger than the inner diameter of the tube.
  • a gas-permeable filler is provided in the transition pipe.
  • the porosity of the air-permeable filler is 63% to 83%.
  • a temperature sensor is provided at the front end of the nose tube.
  • a temperature control valve is provided on the pipe body, and the temperature control valve is connected to the temperature sensor via a controller.
  • nasal insertion tube and the transition tube are integrally injection molded.
  • the tube body and the transition tube are movably sealed and inserted.
  • the inner diameter of the transition pipe is 10-12 mm.
  • the present invention has the following advantages: the structure of the inner wall at the junction of the transition tube and the nasal insertion tube is improved, so that the airflow passing by does not appear turbulent, and the probability of noise is reduced; combined with increasing the transition tube And the inner diameter of the nose tube, reduce the airflow speed of the pressure gas, and further prevent noise when the pressure gas flows.
  • adding air-permeable fillers in the transition tube can also achieve the purpose of reducing the airflow velocity.
  • a temperature sensor is installed at the front end of the nasal tube, which can detect the temperature of the patient's exhaled airflow, which can not only detect the patient's body temperature, but also adjust the temperature control valve on the tube according to the sensor, avoiding the traditional uninterrupted air supply process The resulting waste situation; due to the high temperature of the exhaled airflow, the temperature control valve is closed in time according to the information measured by the temperature sensor, thereby avoiding the waste of oxygen delivery when the patient exhales.
  • Figure 1 is a schematic diagram of the structure of the medical oxygen tube of the present invention.
  • Figure 2 is a partial enlarged view of the transition tube and the nasal tube
  • 1-tube body 2-transition tube, 21-permeable filler, 3-nasal tube, 31-temperature sensor, 4-temperature control valve.
  • a medical oxygen tube includes a tube body 1, a transition tube 2 and two nasal insertion tubes 3.
  • the tube body 1 is connected to the transition tube 2, and the transition tube 2 is connected to the two nasal insertion tubes 3 in the radial direction.
  • the inner wall of the connection between the nose insertion tube 3 and the transition tube 2 is a smooth transition arc structure.
  • the inner wall of the junction between the transition tube 2 and the nasal insertion tube 3 is right-angled.
  • turbulence is prone to occur, causing local airflow velocity to be too fast and sound.
  • this product is a smooth transition arc structure, where the airflow is not prone to turbulence, and the whole is in a laminar flow state, which reduces the occurrence of noise.
  • the inner diameters of the transition tube 2 and the nose insertion tube 3 are both larger than the inner diameter of the tube body 1.
  • the smooth transition arc structure at the junction of the tube 2 and the nose tube 3 greatly reduces the probability of noise generated by the airflow.
  • the inner diameter of the traditional oxygen tube is 6-10mm.
  • the inner diameter of the tube body 1 maintains the traditional size, while the inner diameters of the transition tube 2 and the nasal tube 3 are enlarged to 10-12mm.
  • the cross-sectional area of the transition tube 2 relative to the tube body 1 can be expanded up to 4 times, and the speed of the airflow entering the transition tube 2 is reduced instantaneously, and it enters the nasal tube 3 quite slowly without noise.
  • a gas-permeable filler 21 is added to the transition pipe 2. It is used to buffer the instability of the airflow caused by the abrupt cross-sectional area, and to ensure the smooth diffusion of the airflow through the filler 21.
  • the air-permeable filler 21 has a porosity of 63% to 83%, such as a solid filler such as activated carbon with a large pore size.
  • the filling of the air-permeable filler may be partial filling, as shown in FIG. 2, or the entire transition tube 2 may be filled.
  • the transition pipe 2 is filled with air-permeable substances. Due to the relatively large porosity of the filling, these substances themselves have a stabilizing effect on the airflow, and at the same time, they can also filter the airflow to filter out some impurities or harmful substances.
  • the traditional oxygen delivery process is continuous delivery, that is, after opening the valve, the bottled oxygen will be delivered to the outlet of the nasal tube 3, no matter what the patient is in, such as exhaling or temporarily pulling out the nasal tube 3, this will inevitably lead to delivery Oxygen does not work, causing waste.
  • This product is equipped with a temperature sensor 31 on the nasal tube 3, which uses the difference between the exhaled temperature and the temperature of the supplied oxygen.
  • the exhaled temperature is generally body temperature. As long as the temperature of the exhaled gas is sensed, or the temperature of the supplied oxygen is higher, The oxygen delivery device can be controlled to suspend the gas supply. Of course, for those who temporarily pull out the nasal tube 3, it is clearer when to suspend the gas supply.
  • the temperature sensor 31 is not only to provide the function of when to stop the air supply, but also to monitor the patient's body temperature.
  • the temperature information detected by the temperature sensor 31 it can be connected to the oxygen pipeline control valve through the controller through a wired method, and the temperature change range is set in the controller, and the corresponding relationship with the control valve switch; this kind of technology is used in electronic control equipment The middle is a common operation, so I will add one by one here.
  • this product adopts a temperature control valve 4 provided on the pipe body 1, and the temperature control valve 4 is connected to the temperature sensor via a controller.
  • the temperature control valve 4 is an electric type, and based on a set temperature range, the valve is automatically switched on and off according to temperature changes.
  • the position of the main pipe body is selected at the position where the temperature control valve 4 is set, which will not affect the normal use of the patient, but can also be used well. To switch function.
  • the oxygen delivery can be selectively turned on or off, such as supplying air when the patient inhales, and pauses when exhaling, saving oxygen supply.
  • the two are injection molded at one time.
  • the inner wall of the connection is smooth and the airflow stability is good, and it is difficult to produce noise.
  • the tube body 1 and the transition tube 2 are plugged in, especially the movable sealing plug.
  • the integrated structure of the transition tube 2 and the nasal insertion tube 3 because the nasal insertion tube 3 is in contact with the patient, after the routine oxygen delivery is completed,
  • the associated tube body 1, the transition tube 2 and the nasal insertion tube 3 are treated as medical waste.
  • the tube body 1 and the transition tube 2 are inserted, and the transition tube 2 is made longer than the traditional structure to avoid the tube body 1.
  • the tube body 1 itself is a general-purpose material that can be used multiple times, avoiding the situation of discarding after one-time use. At the same time, medical waste is reduced and resources are saved.
  • breathable fillers can be added to the transition tube 1 as needed.
  • the tube body 1 and the transition tube 2 are connected by plugging, and the addition of the breathable filler will not be affected by the tube body 1, so it is convenient to manufacture easy.

Abstract

La présente invention concerne une canule d'oxygène médicinale, comprenant un corps de canule (1), une canule de transition (2), et deux broches nasales (3). Le corps de canule (1) est relié à la canule de transition (2) ; les deux broches nasales (3) sont radialement en communication avec la canule de transition (2) ; la paroi interne des parties de raccord des broches nasales (3) et de la canule de transition (2) est une structure en arc de transition lisse. La structure de la paroi interne des parties de raccord de la canule de transition (2) et des broches nasales (3) est améliorée, de sorte qu'un flux d'air s'y écoulant ne peut pas générer d'écoulement turbulent, et la probabilité de bruit est réduite. En augmentant les diamètres internes de la canule de transition (2) et des broches nasales (3), la vitesse d'écoulement de l'air est réduite, et le bruit généré lorsque l'air sous pression s'y écoule est en outre évité. De plus, une charge perméable à l'air (21) est additionnellement disposée dans la canule de transition (2), de sorte que le but de réduire la vitesse de l'air est également atteint.
PCT/CN2019/073800 2019-01-30 2019-01-30 Canule d'oxygène médicinale WO2020154933A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2019/073800 WO2020154933A1 (fr) 2019-01-30 2019-01-30 Canule d'oxygène médicinale
AU2019100778A AU2019100778A4 (en) 2019-01-30 2019-07-18 Medical oxygen cannula

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/073800 WO2020154933A1 (fr) 2019-01-30 2019-01-30 Canule d'oxygène médicinale

Publications (1)

Publication Number Publication Date
WO2020154933A1 true WO2020154933A1 (fr) 2020-08-06

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PCT/CN2019/073800 WO2020154933A1 (fr) 2019-01-30 2019-01-30 Canule d'oxygène médicinale

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AU (1) AU2019100778A4 (fr)
WO (1) WO2020154933A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103706009A (zh) * 2013-12-11 2014-04-09 中国人民解放军第四军医大学 一种呼吸同步的氧气输出控制系统及控制方法
CN104902948A (zh) * 2012-10-31 2015-09-09 蒸汽热能公司 静音鼻部插管
US20160051787A1 (en) * 2014-08-19 2016-02-25 Atom Medical Corporation Nasal cannula
CN206642192U (zh) * 2017-01-03 2017-11-17 中国人民解放军总医院 一种新型吸氧装置
CN206660251U (zh) * 2016-11-27 2017-11-24 中国人民解放军第四军医大学 一种一次性鼻罩吸氧管
CN107596524A (zh) * 2017-10-29 2018-01-19 吴彬彬 一种可自动密封闭合的活动卡接式医用吸氧管装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104902948A (zh) * 2012-10-31 2015-09-09 蒸汽热能公司 静音鼻部插管
CN103706009A (zh) * 2013-12-11 2014-04-09 中国人民解放军第四军医大学 一种呼吸同步的氧气输出控制系统及控制方法
US20160051787A1 (en) * 2014-08-19 2016-02-25 Atom Medical Corporation Nasal cannula
CN206660251U (zh) * 2016-11-27 2017-11-24 中国人民解放军第四军医大学 一种一次性鼻罩吸氧管
CN206642192U (zh) * 2017-01-03 2017-11-17 中国人民解放军总医院 一种新型吸氧装置
CN107596524A (zh) * 2017-10-29 2018-01-19 吴彬彬 一种可自动密封闭合的活动卡接式医用吸氧管装置

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